Benton, M.J. 1990. 1. Origin and Interrelationships of Dinosaurs. In D.B. Weishampel, P. Dodson & H. Osmólska (eds.), The Dinosauria. University of California Press, Berkeley / Los Angeles / Oxford: 11-30.
(Clade) Diapsida Osborn 1903 [Laurin 1991]